Live Manual
Engine Error

P0378

Timing Reference High Resolution Signal B Intermittent/Erratic Pulses

Severity
High

Symptoms

Occasional stalling, hesitation on acceleration

Common Causes

  • Loose connector on sensor B
  • Wiring harness shorting out intermittently
  • Failing sensor B
  • Vibration issues

How to Fix

  1. 1 Secure electrical connector
  2. 2 Perform wiggle test and repair wire
  3. 3 Replace sensor B
  4. 4 Apply dielectric grease
Estimated Repair Cost USD
$50 $400

Wiring repair: 100; Sensor: 200 - 400